Properties

Label 2-768-1.1-c1-0-4
Degree $2$
Conductor $768$
Sign $1$
Analytic cond. $6.13251$
Root an. cond. $2.47639$
Motivic weight $1$
Arithmetic yes
Rational no
Primitive yes
Self-dual yes
Analytic rank $0$

Origins

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Normalization:  

Dirichlet series

L(s)  = 1  + 3-s − 3.46·5-s + 3.46·7-s + 9-s − 3.46·15-s + 6·17-s + 4·19-s + 3.46·21-s − 6.92·23-s + 6.99·25-s + 27-s + 3.46·29-s + 3.46·31-s − 11.9·35-s + 6.92·37-s + 6·41-s + 4·43-s − 3.46·45-s + 6.92·47-s + 4.99·49-s + 6·51-s + 3.46·53-s + 4·57-s − 12·59-s − 6.92·61-s + 3.46·63-s − 4·67-s + ⋯
L(s)  = 1  + 0.577·3-s − 1.54·5-s + 1.30·7-s + 0.333·9-s − 0.894·15-s + 1.45·17-s + 0.917·19-s + 0.755·21-s − 1.44·23-s + 1.39·25-s + 0.192·27-s + 0.643·29-s + 0.622·31-s − 2.02·35-s + 1.13·37-s + 0.937·41-s + 0.609·43-s − 0.516·45-s + 1.01·47-s + 0.714·49-s + 0.840·51-s + 0.475·53-s + 0.529·57-s − 1.56·59-s − 0.887·61-s + 0.436·63-s − 0.488·67-s + ⋯

Functional equation

\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s) \, L(s)\cr =\mathstrut & \, \Lambda(2-s) \end{aligned}\]
\[\begin{aligned}\Lambda(s)=\mathstrut & 768 ^{s/2} \, \Gamma_{\C}(s+1/2) \, L(s)\cr =\mathstrut & \, \Lambda(1-s) \end{aligned}\]

Invariants

Degree: \(2\)
Conductor: \(768\)    =    \(2^{8} \cdot 3\)
Sign: $1$
Analytic conductor: \(6.13251\)
Root analytic conductor: \(2.47639\)
Motivic weight: \(1\)
Rational: no
Arithmetic: yes
Character: Trivial
Primitive: yes
Self-dual: yes
Analytic rank: \(0\)
Selberg data: \((2,\ 768,\ (\ :1/2),\ 1)\)

Particular Values

\(L(1)\) \(\approx\) \(1.724566718\)
\(L(\frac12)\) \(\approx\) \(1.724566718\)
\(L(\frac{3}{2})\) not available
\(L(1)\) not available

Euler product

   \(L(s) = \displaystyle \prod_{p} F_p(p^{-s})^{-1} \)
$p$$F_p(T)$
bad2 \( 1 \)
3 \( 1 - T \)
good5 \( 1 + 3.46T + 5T^{2} \)
7 \( 1 - 3.46T + 7T^{2} \)
11 \( 1 + 11T^{2} \)
13 \( 1 + 13T^{2} \)
17 \( 1 - 6T + 17T^{2} \)
19 \( 1 - 4T + 19T^{2} \)
23 \( 1 + 6.92T + 23T^{2} \)
29 \( 1 - 3.46T + 29T^{2} \)
31 \( 1 - 3.46T + 31T^{2} \)
37 \( 1 - 6.92T + 37T^{2} \)
41 \( 1 - 6T + 41T^{2} \)
43 \( 1 - 4T + 43T^{2} \)
47 \( 1 - 6.92T + 47T^{2} \)
53 \( 1 - 3.46T + 53T^{2} \)
59 \( 1 + 12T + 59T^{2} \)
61 \( 1 + 6.92T + 61T^{2} \)
67 \( 1 + 4T + 67T^{2} \)
71 \( 1 - 6.92T + 71T^{2} \)
73 \( 1 + 2T + 73T^{2} \)
79 \( 1 + 10.3T + 79T^{2} \)
83 \( 1 + 83T^{2} \)
89 \( 1 + 6T + 89T^{2} \)
97 \( 1 + 2T + 97T^{2} \)
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   \(L(s) = \displaystyle\prod_p \ \prod_{j=1}^{2} (1 - \alpha_{j,p}\, p^{-s})^{-1}\)

Imaginary part of the first few zeros on the critical line

−10.39521073874020647516114032943, −9.372667454474063667608579411767, −8.214914240670044582931981527415, −7.889096077611923200869152168690, −7.35668311255951904780242918563, −5.79999482200306713163202956010, −4.60778667873856736773533259212, −3.94473219590269394985990184396, −2.82727781584139604585754955534, −1.16462166520986921322379175886, 1.16462166520986921322379175886, 2.82727781584139604585754955534, 3.94473219590269394985990184396, 4.60778667873856736773533259212, 5.79999482200306713163202956010, 7.35668311255951904780242918563, 7.889096077611923200869152168690, 8.214914240670044582931981527415, 9.372667454474063667608579411767, 10.39521073874020647516114032943

Graph of the $Z$-function along the critical line